Sheet-metal container



Aug. 28, 1928. 1,682,096

W. F. SCHWEIGERT SHEET METAL CONTAINER Filed Feb. 21, 1925 I 137 06227 0 7" MW 3404 06 ./7770 r71. eys

Patented Aug. 28, 1928.

UNITED. STATES WILLIAM F. SCHWETGERT, OF BUFFALO, NEW YORK.

SHEET-METAL CONTAINER.

Application filed February 21, 1925. Serial No. 10,950.

This invention relates to a sheet metal container which is more particularly designed for packing and shipping paint, putty and similar materials and which requires a substantially air-tight joint between the head or cover upon replacement after using a part of the contents in order to prevent hardening or deterioration of the remainder in the container.

t is one of the purposes of this invention to provide a container of this character with a removable head or cover which permits of tightly rescaling after being opened and to accomplish this by means which are simple, inexpensive and easily operated.

A further object of this invention is to provide the joint between the bottom and body of the container with a cushion which absorbs the shock in the event that the container is dropped and thereby prevents the seam from opening and allowing the contents to leak out.

In the accompanying drawings:

Figure 1 is a vertical section of a sheet metal container embodying my improvements.

Figure 2 is a top plan view thereof.

Figures 3, 4 and 5 are fragmentary vertical sections of the upper part of the body and head of ,the container and forms fastenings between the same which differ slightly from the structure shown in Fig. 1.

Similar characters of reference indicate corresponding parts throughout the several views.

The body 10 of the container consists of sheet metal which preferably has the form of a cylindrical tube. At its lower end the body is close'd by a permanent bottom -11 of sheet metal and its upper end is closed by a detachable head or cover 12. The bottom is preferably connected at its ed e with the lower end of the body by a double seam 13 which bulges out laterally and downward ly from the joint or junction between the body and bottom.

For the purpose of increasing the strength of the joint between the body and bottom a reinforcement is provided which preferably consists of a metal band 14 surrounding the peripheral part of the double seam 13 and providedat' its upper edge with an inwardly turned flange 15 which engages with the periphery of the body immediately above the double seam, and an upwardly opening channel 16 arranged on the inner side of the lower end of said band and receiving the lower part of said double seam, as shown in Fig. 1.

ln order to relieve the double seam joint between the body and bottom and prevent the same from becoming loose and leaking in the event that the container is dropped so-as to strike on said seam a cushion is provided which serves to absorb the shock on the container and strain on the joint between the body and bottom. This cushion in its preferred form consists of a ring 17 of wicking, cork, rubber or other resilient material interposed between the channel of the reinforcen'ient and the lower side of the double seam joint, as shown in Fig. 1. This cushion will absorb the shock and protect the seam against loosening and leaking, thereby insuring protection for the contents of the container against loss or deterioration. 7

In the construction shown in Fig. 1, the upper end portion of the body is provided near its end wlth an internal channel forming an upwardly facin lower shoulder and an upper downwardly racing shoulder. The lower shoulder is produced by doubling or folding the metal of the body inwardly into the form of a pleat or bead 18, the upper side of which is grooved or concaved and serves as the annular upwardly facing shoulder or seat for a packing ring 19 of rubber, wicking or anyother suit-able resilient material.

Above the lower pleat 18 the upper edge of the body is provided with an upper inwardly projecting pleat or bead 20 which is formed by doubling the material of the body inwardly thereby forming the downwardly facing shoulder above referred to wnich op poses the lower pleat 18.

The plies of this upper pleat have their inner edges connected and the lower ply connects with the body of the container while the upper ply has its outer end provided with an outward extension 21 which is bent backwardly against the periphery of the body, as shown in Fig. 1.

The diameter of the inner edge of the lower pleat is slightly greater than the diameter of the corresponding edge of the upper pleat so that the edge of the head 12 will clearthe upper pleat but rest on the packing which is supported on the lower pleat. For the purpose of centering the head or cover on the body the central part of the head is dished downwardly so as to form an annular downwardly projecting web 22 adjacent to its edge which passes downwardly through the opening withinzthe lower pleat or bead 18.

On its upper side the head or cover is preferably provided with a handle or finger piece 23 for manipulating the same.

The head is tightly clamped against the packing ring for sealing the inlet of the container and preserving its contents by a fastening ring which is inserted between the upper side of the marginal part of the head and the underside of the upper bead or pleat-on the body. This ring is split and preferably constructed of resilient material such steel and in the form shown in Fig. l. the same consists of two flanges 24, 2st which in cross section converge outwardly and are connected at their outer edges while their inner edges are disconnected so that this ring as a whole, is of outwardly tapering form in cross section. Upon contracting this fastening ring suificiently to pass downwardly through the opening demarcated by the upper bead or pleat 20 and releasing the same when it is below this pleat the inclined surfaces of the fastening ring wedges outwardly between the head and the upper bead or shoulder and forces the head firmly down against the upper packing so as to confine the material within the container and exclude air which would dry this material.

For convenience in removing the fastening ring preparatory to taking off the head when access to the container is desired, one end of the split ring is provided with a hole 25 adapted to receive a tool whereby the same may be drai n out of engagement from the head and body.

instead of constructing the outer or up-v per shoulder onthe body in the form of a doubled bead or pleat the same may be constructed in the form of a single flange 26 projecting inwardly from the upper end of the body, as shown in Figures 3 and 4.

Another form of this shoulder is represented in Fig. 5 w'herethe same isconstruc ed in the form of a curl 27.

if des red the fastening ring may be solid in cross section as shown at 28 in Figures and 5. I The lower shoulder for the head may be constructed in the form of an open bead 29 on the body, as shown in Figs. 4: and 5, in-

tion permits of producing a tight joint between the body and head for protecting contents of the container during shipment and storage and also permits ofreadily opening the same and rescaling the container without difliculty.

Moreover the construction of my invention is such that it permits of easily pouring out the entire contents of the container and using the same similar to parts heretofore known.

Furthermore these improvements are low in cost and do not require any special tools for opening and closing the container.

1 claim as my invention V A sheet metal container comprising a tubular body which is provided near its upper end with an inwardly projecting pleat forming an internal outwardly facing annular shoulder, and at its upper end with an inwardly projecting flange forming an internal inwardly facing annular shoulder, a packing engaging its inner side with said outwardly facing shoulder, a cover having an annular flange at its periphery which engages its inner side. with the outer side of said packing and a. split resilient fastening ring which is wedge shaped in cross section and provided with two annular flanges conyergrng outwardly and engaging respectiveiy with the outer side of said cover riange and the inwardly facing shoulder of the end flange on the body.

lVILLIAM F. SCHlVEIGERT. 

